Display device and display

The display device uses a micro-optical structure with rectangular prisms and microlenses to refract light to a predetermined angle and a color conversion layer to convert light to a predetermined color, addressing the issues of angle and color variation in Micro-LED displays.

JP7743545B2Active Publication Date: 2025-09-24XIAMEN EXTREMELY PQ DISPLAY TECH CO LTD
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Patent Information

Application Number
JP2023581080
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Priority Date
2021-12-09
Filing Date
2021-12-16
Publication Date
2025-09-24
Estimated Expiration
2041-12-16

AI Technical Summary

Technical Problem

Conventional Micro-LED display panels emit light at wide angles, leading to issues in forming high-quality images with predetermined angles and causing color differences due to varying light rotation angles.

Method used

A display device comprising a driving substrate, a light-emitting element matrix, a micro-optical structure, and a color conversion layer matrix, where the micro-optical structure includes rectangular prisms and microlenses to refract light to a predetermined angle, and the color conversion layer converts light to a predetermined color, with additional layers to prevent interference and filter unwanted light.

Benefits of technology

The solution enables the formation of images with predetermined angles and avoids color differences by ensuring uniform light refraction and color conversion, improving image quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention relates to a display device and a display. [Solution] The display device includes a driving substrate, a light emitting element matrix, a micro-optical structure, and a color conversion layer matrix. A driving circuit is attached to the driving substrate. The light emitting element matrix is ​​formed on the surface of the driving substrate, and the light emitting element matrix includes a plurality of light emitting elements, which are electrically connected to the driving circuit, and the plurality of light emitting elements emit light of the same color. The micro-optical structure is formed above the light emitting element matrix, so that the light emitted by the light emitting elements has the same refraction angle. The color conversion layer matrix is ​​formed above the micro-optical structure, and the light emitting elements in the light emitting element matrix and the color conversion layers in the color conversion layer matrix are arranged to correspond to each other, and the color conversion layer matrix converts the light emitted by the light emitting elements into light having a predetermined color. The present invention can display an image having a predetermined angle on a display panel and avoid color difference.
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Description

[Technical Field]

[0001] The present invention is in the field of semiconductor display technology, and in particular, relates to display devices and displays. [Background technology]

[0002] Micro-LEDs utilize thin-film, miniaturized, and matrix LED structures, allowing the size of Micro-LEDs to be reduced to 1-10 μm. After a large number of Micro-LEDs are arranged on a driving substrate, a protective layer and electrodes are formed using physical vapor deposition, and then the assembly is completed to achieve a Micro-LED display. After a large number of Micro-LED chips are arranged on the driving substrate, the Micro-LED chips are electrically connected to the driving circuit on the driving substrate. The driving circuit on the driving substrate controls the opening and closing of the Micro-LED chip. When current from the driving circuit flows through the Micro-LED chip, electrons and holes combine within the Micro-LED chip, causing light to be emitted. Micro-LED chips emit light at various angles, resulting in a wide light emission angle. The light emission angle of conventional Micro-LED display panels is within a ±80° range.

[0003] In the application of Micro-LED display panels, the light emitted from the Micro-LED display panel can be emitted at a predetermined angle to display a high-quality image, whereas the light emitted from the conventional Micro-LED display panel has a large angle, which makes it impossible to achieve this. Summary of the Invention [Problem to be solved by the invention]

[0004] SUMMARY OF THE INVENTION In order to solve the drawbacks of the prior art, the object of the present invention is to provide a display device and a display, which can form an image having a predetermined angle and improve the quality of the display screen. [Means for solving the problem]

[0005] To achieve the above object, the present invention provides a display device, which includes a driving substrate, a light-emitting element matrix, a micro-optical structure, and a color conversion layer matrix, A drive circuit is attached to the drive board, The light emitting element matrix is ​​formed on the surface of the driving substrate, the light emitting element matrix includes a plurality of light emitting elements, the light emitting elements are electrically connected to the driving circuit, and the plurality of light emitting elements emit light of the same color; The micro-optical structure is formed above the light emitting element matrix so that the light emitted from the light emitting element has the same refraction angle. The color conversion layer matrix is ​​formed above the micro-optical structure, and each light-emitting element in the light-emitting element matrix corresponds to a corresponding color conversion layer in the color conversion layer matrix, and the color conversion layer matrix converts the light emitted by the light-emitting element into light having a predetermined color.

[0006] In an embodiment of the present invention, the micro-optical structure includes a rectangular prism matrix, which includes a plurality of rectangular prisms, and the rectangular prisms and the light-emitting elements are arranged in correspondence with each other.

[0007] In the embodiment of the present invention, the color conversion layer matrix is ​​formed on top of the rectangular prism matrix, and the color conversion layers in the color conversion layer matrix correspond to the rectangular prisms in the rectangular prism matrix one by one.

[0008] In an embodiment of the present invention, the micro-optical structure further includes a transparent substrate, which is attached between the rectangular prism matrix and the light-emitting element matrix.

[0009] In the embodiment of the present invention, the cross section of the right-angled prism is a right-angled triangle, and one right-angled side of the right-angled triangle abuts on the transparent substrate.

[0010] In an embodiment of the present invention, the micro-optical structure further includes a micro-lens matrix, which is formed on one side of the transparent substrate close to the light-emitting element matrix, and the micro-lens matrix includes a plurality of micro-lenses, and the micro-lenses and the rectangular prisms are formed to correspond to each other.

[0011] In an embodiment of the present invention, the microlens matrix is ​​a convex lens matrix or a concave lens matrix.

[0012] In an embodiment of the present invention, the color conversion layer matrix includes a first color conversion layer, a second color conversion layer and a third color conversion layer, wherein the first color conversion layer forms red light by exploding the light emitted by the light emitting element, the second color conversion layer forms green light by exploding the light emitted by the light emitting element, and the third color conversion layer forms blue light by exploding the light emitted by the light emitting element.

[0013] In an embodiment of the present invention, a filter layer is formed above the color conversion layer matrix, and the filter layer converts light passing through the micro-optical structure into light having a predetermined refraction angle and removes light other than light having the predetermined refraction angle.

[0014] In an embodiment of the present invention, the display device further includes an anti-interference layer, which is formed on the driving substrate and located between two adjacent light emitting elements.

[0015] In an embodiment of the present invention, the display device further includes a reflective layer, which is formed on the driving substrate to be located between two adjacent light emitting elements.

[0016] The present invention further provides a display, which comprises any one of the display devices described above. [Effects of the Invention]

[0017] The display device and display of the present invention can provide the following effects of the invention. The display device of the present invention uses a micro-optical structure to make the light emitted by the light emitting element have a predetermined refraction angle, thereby obtaining an image with a predetermined angle. Also, the display device uses light of the same color as the light source, and converts the light of the same color that passes through the micro-optical structure into light of a predetermined color, thereby avoiding color differences caused by different light rotation angles when multiple lights of different wavelengths pass through the micro-optical structure.

[0018] The display of the present invention includes the display device, and can still achieve the effects of the present invention. [Brief explanation of the drawings]

[0019] [Figure 1] 1 is a diagram illustrating the structure of a display device according to an embodiment of the present invention; [Figure 2] 1 is a diagram illustrating the structure of a display device according to an embodiment of the present invention; [Figure 3] 1 is a diagram illustrating the structure of a display device according to an embodiment of the present invention; [Figure 4] 3 is a flow chart showing a display method of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0020] The present invention will be described in detail below with reference to specific embodiments. Those skilled in the art can easily understand the effects and functions of the present invention from the disclosure of this specification. The present invention can be implemented not only by the following embodiments, but also by other embodiments. That is, those skilled in the art can modify, improve, or substitute some features of the design without departing from the spirit of the present invention. It should be noted that the following embodiments or features in each embodiment can be appropriately combined, provided that no contradictions arise.

[0021] It should be noted that the drawings relating to the embodiments of the present invention are drawings illustrating an example of the basic structure of the present invention, and only parts relevant to the embodiments of the present invention are shown in the drawings. The drawings in this specification do not show the actual number, shape, and size of each module. When implementing the present invention, the actual number, shape, and size of each module can be appropriately changed, and the layout of each module can be made more complex. The structures, proportions, sizes, etc. shown in the drawings in this specification are intended to explain the matters of this specification and allow those skilled in the art to easily understand the present invention. In other words, the structures, proportions, sizes, etc. shown in the drawings in this specification do not relate to actual technical matters and are not intended to limit the conditions for implementing the present invention. Of course, if structural improvements, proportional modifications, or size adjustments do not affect the effects and purpose of the present invention, the structural improvements, proportional modifications, or size adjustments are included in the scope of the claims of the present invention.

[0022] In order to solve the shortcomings of the prior art, the object of the present invention is to provide a display device and a display, which can form an image having a predetermined angle on a display panel and avoid the occurrence of color difference.

[0023] Example 1 In this embodiment, a display device is provided. The display device includes a driving substrate, a light-emitting element matrix, a micro-optical structure, and a color conversion layer matrix. The driving substrate includes a driving circuit, and the light-emitting elements in the light-emitting element matrix are electrically connected to the driving circuit, and each light-emitting element in the light-emitting element matrix emits light of the same color. The micro-optical structure is formed above the light-emitting element matrix so that the light emitted from the light-emitting elements has the same refraction angle. The color conversion layer matrix is ​​formed above the micro-optical structure, and the light-emitting elements in the light-emitting element matrix and the color conversion layers in the color conversion layer matrix are arranged to correspond to each other. The color conversion layer matrix converts the light emitted by the light-emitting elements into light having a predetermined color.

[0024] Specifically, referring to FIG. 1 , the driving substrate 100 includes a driving circuit. The driving substrate 100 is a support for supporting the entire display panel, and supports the light emitting element matrix 200 and the micro-optical structure 400 formed thereon. The driving substrate 100 is electrically connected to the light emitting element matrix 200 to drive the light emitting element matrix 200. In this embodiment, the driving substrate 100 is a TFT (Thin Film Transistor) driving substrate, but the driving substrate 100 of the present invention is not limited to a TFT driving substrate. The driving substrate 100 is a glass driving substrate and includes a driving circuit electrically connected to each light emitting element 201. The driving circuit controls the lighting of each light emitting element 201.

[0025] The light emitting element matrix 200 is formed on the surface of the driving substrate 100 as a light source of the display device, and includes a plurality of light emitting elements 201. In this embodiment, light of the same color is used as the light source to avoid the formation of an image with color differences due to the rotation of the plurality of lights at different angles when the plurality of lights with different wavelengths pass through the micro-optical structure 400. The light emitting element 201 is a micro LED chip, and the micro LED chip can include a micro blue LED chip, a micro purple LED chip, a micro ultraviolet LED chip, etc.

[0026] The micro-optical structure 400 is formed above the light emitting device matrix 200 to ensure that the light emitted by the light emitting device 201 has the same refraction angle. Specifically, the micro-optical structure 400 includes a rectangular prism matrix 403, which includes a plurality of rectangular prisms 4031. The rectangular prisms 4031 in the rectangular prism matrix 403 correspond to the light emitting devices 201 in the light emitting device matrix 200, respectively. Thus, the rectangular prisms 4031 in the rectangular prism matrix 403 can refract the light emitted by the light emitting devices 201 at a predetermined angle. The micro-optical structure further includes a transparent substrate 402, which is attached between the rectangular prism matrix 403 and the light emitting device matrix 200. The transparent substrate 402 supports the rectangular prism matrix 403, and the light emitted by the light emitting devices 201 passes through the transparent substrate 402. The cross section of the rectangular prism 4031 is a right-angled triangle, and one right-angled side of the right-angled triangle abuts the transparent substrate 402. A microlens matrix 401 is formed on one side of the transparent substrate 402 that is closer to the light emitting element matrix 200, and the microlens matrix 401 includes a plurality of microlenses 4011. The microlens matrix 401 is formed on one side of the transparent substrate 402 that is closer to the light emitting element matrix 200, and the microlenses 4011 in the microlens matrix 401 correspond to the rectangular prisms 4031 in the rectangular prism matrix 403 one by one. The microlens matrix 401 concentrates the light emitted from the light emitting element 201, thereby increasing the area of ​​the emitting surface and improving the photo effect to a certain extent. The microlens matrix 401 may be a convex lens matrix or a concave lens matrix. The transparent substrate 402, the rectangular prism matrix 403, and the microlens matrix 401 may be made of inorganic glass or other transparent inorganic materials.

[0027] In this embodiment, a spacer is formed between the micro-optical structure 400 and the light-emitting element matrix 200, and air, nitrogen, or other adhesive may be injected into the spacer. The refractive index of the transparent filler 300 is different from that of the micro-optical structure 400.

[0028] 1 or 3, in order to prevent optical interference caused by the diffusion of single-color light emitted from the light emitting element 201 to the surroundings, an anti-interference layer 700 is formed between two adjacent light emitting elements 201 in an embodiment of the present invention. The anti-interference layer 700 is formed on the driving substrate 100 so as to be located between the two adjacent light emitting elements 201. The anti-interference layer 700 prevents optical interference by absorbing light emitted from the adjacent light emitting element 201. In this embodiment, the anti-interference layer 700 is a black adhesive layer. The height of the anti-interference layer 700 is higher than the height of the light emitting element 201, thereby preventing light emitted from the top of the light emitting element 201 from interfering with light emitted from the adjacent light emitting element 201. In this embodiment, the height of the anti-interference layer 700 is equal to the vertical distance between the driving substrate 100 and the transparent substrate 402, and the anti-interference layer 700 is a black adhesive layer. Referring to FIG. 2, in another embodiment of the present invention, a reflective layer 800 is formed between two adjacent light emitting elements 201. When single-color light emitted from the light emitting element 201 is diffused to the surroundings, the diffused light is reflected by the reflective layer 800, thereby increasing the amount of light emitted in the vertical direction and preventing light interference with light emitted by adjacent light emitting elements 201. In this embodiment, the reflective layer 800 is a white adhesive layer. In another embodiment, the reflective layer 800 may be a reflective layer made of a highly reflective material, such as Ag. The height of the reflective layer 800 is higher than the height of the light emitting element 201, thereby preventing light emitted from the top of the light emitting element 201 from interfering with light emitted by adjacent light emitting elements 201. In this embodiment, the height of the reflective layer 800 is equal to the vertical distance between the driving substrate 100 and the transparent substrate 402.

[0029] The color conversion layer matrix 500 is formed on top of the micro-optical structure 400, and each light emitting element 201 in the light emitting element matrix 200 corresponds to a corresponding color conversion layer in the color conversion layer matrix 500. This allows light emitted from the light source to be converted into light having a predetermined color. The color conversion layer matrix 500 may also be formed on top of the rectangular prism matrix 403, and each color conversion layer in the color conversion layer matrix 500 corresponds to a corresponding rectangular prism 4031 in the rectangular prism matrix 403. The color conversion layer may be a thin film layer with a uniform thickness formed on the light-emitting surface of the rectangular prism 4031 as shown in FIG. 1 or 2, or a prism-shaped color conversion layer formed on the light-emitting surface of the rectangular prism 4031 as shown in FIG. 3. The color conversion layer matrix 500 is made of fluorescent powder or quantum dots, and light emitted by the light emitting element 201 can stimulate the fluorescent powder or quantum dots located in the color conversion layer to produce light having a predetermined wavelength. 1, 2, or 3, the color conversion layer matrix 500 includes a first color conversion layer 501, a second color conversion layer 502, and a third color conversion layer 503. The first color conversion layer 501 converts light emitted by the light emitting element 201 into red light, the second color conversion layer 502 converts light emitted by the light emitting element 201 into green light, and the third color conversion layer 503 converts light emitted by the light emitting element 201 into blue light. The first color conversion layer 501, the second color conversion layer 502, and the third color conversion layer 503 correspond to the rectangular prisms 4031 in the rectangular prism matrix 403, respectively, thereby converting the color of the light refracted by the rectangular prisms 4031. When the light emitted by the light emitting element 201 is blue light, the first color conversion layer 501 may be made of a red organic fluorescent dye. The light spectrum absorbed by the red organic fluorescent dye is located between 430 nm and 580 nm and between 580 nm and 660 nm, and the red organic fluorescent dye can absorb blue and green light and then convert it into red light. The second color conversion layer 502 can be composed of a green organic fluorescent dye.The light absorption spectrum of the green organic fluorescent dye is located at 430nm to 580nm, and the green organic fluorescent dye can absorb blue light and then convert it into green light. The third color conversion layer 503 is made of a colorless and transparent material and can transmit blue light.

[0030] 1, the microlens matrix 401 of the display device is a concave lens, an anti-interference layer 700 is formed between the light emitting elements 201, and the color conversion layer is a color conversion layer formed on the surface of the rectangular prism 4031 and has a uniform thickness. In this embodiment, the concave lens increases the area of ​​the light emitting surface, thereby improving the light emission efficiency to a certain extent. The anti-interference layer 700 can prevent light interference by absorbing the light emitted by the adjacent light emitting element 201.

[0031] 2, the microlens matrix 401 of the display device is a convex lens, a reflective layer 800 is formed between the light emitting elements 201, and a color conversion layer is formed on the surface of the rectangular prism 4031 and has a uniform thickness. In this embodiment, the microlens matrix 401 functions as a condenser and can condense the light emitted from the light emitting elements 201. The reflective layer 800 can increase the light output of the light emitting elements 201 by reflecting the light emitted from the adjacent light emitting elements 201.

[0032] 3, the microlens matrix 401 of the display device is a concave lens, an anti-interference layer is formed between the light emitting elements 201, and the color conversion layer is a prism-shaped color conversion layer formed on the surface of the rectangular prism 4031. Similarly, the concave lens in this embodiment can increase the area of ​​the light emitting surface and improve the light output efficiency to a certain extent. The anti-interference layer can prevent light interference by absorbing the light emitted by the adjacent light emitting element 201.

[0033] It should be noted that the layer materials and shapes of the color conversion layers formed between the microlens matrix and the light-emitting elements are not limited to the above combinations. In the present invention, the microlens matrix 401 is a concave or convex lens, and a reflective layer 800 and an anti-interference layer 700 can be formed between the light-emitting elements 201, or the reflective layer 800 can be coated on the surface of the anti-interference layer 700. The color conversion layer can be a prismatic color conversion layer formed on the surface of the rectangular prism 4031, or a color conversion layer with a uniform thickness formed on the surface of the rectangular prism 4031. The layer materials and shapes of the color conversion layers formed between the microlens matrix 401 and the light-emitting elements 201 can be any one of the above combinations, and will not be described one by one here.

[0034] 1, 2, or 3, a filter layer 600 is formed above the micro-optical structure 400. The filter layer 600 converts light transmitted through the micro-optical structure 400 into light having a predetermined refraction angle and removes light other than the light having the predetermined refraction angle, thereby preventing the formation of an image with color differences. The filter layer 600 is a photonic crystal, which is a microstructure formed by periodically arranging media with different refractive indices, and light having the predetermined refraction angle can pass through the filter layer 600.

[0035] The micro-optical structure of this embodiment uses a light emitting element matrix as a light source, which reflects light at a predetermined angle and emits light of the same color, so that when light of the same color passes through the micro-optical structure, the same rotation angle is formed, and an image without color difference can be formed.

[0036] Example 2 In this embodiment, a display method is provided. Referring to Figure 4, the display method in this embodiment includes the following steps:

[0037] In step S101, a light emitting element matrix is ​​arranged so that the light emitting elements in the light emitting element matrix emit light having the same wavelength.

[0038] As shown in Fig. 1, 2 or 3, a driving substrate 100 is provided. The driving substrate 100 is a TFT (Thin Film Transistor) driving substrate, but the driving substrate 100 of the present invention is not limited to a TFT driving substrate. The TFT driving substrate is a glass driving substrate.

[0039] A plurality of light emitting elements 201 are provided, and the plurality of light emitting elements 201 are light sources that emit light of the same color. The plurality of light emitting elements 201 are arranged in a matrix on the surface of the driving substrate 100 to form a light emitting element matrix 200. The light emitting elements 201 are electrically connected to a driving circuit in the driving substrate 100, so that the driving circuit can control the blinking of the light emitting elements 201.

[0040] In an embodiment of the present invention, after the light emitting device matrix 200 is arranged, an anti-interference layer 700 or a reflective layer 800 is formed in the gaps between the light emitting device matrices 200. The height of the anti-interference layer 700 or the reflective layer 800 is higher than the height of the light emitting device 201, thereby preventing optical interference between adjacent light emitting devices 201.

[0041] In step S102, a micro-optical structure is employed to ensure that the light emitted from the light emitting element has the same refraction angle.

[0042] As shown in Figure 1, 2 or 3, a micro-optical structure 400 is provided. The micro-optical structure 400 is formed on one side of the light-emitting surface of the light-emitting element matrix 200, and the light emitted from the light-emitting element matrix 200 is refracted by the micro-optical structure 400 to have the same refraction angle. The rectangular prisms 4031 in the rectangular prism matrix 403 correspond to the light-emitting elements 201 in the light-emitting element matrix 200 one by one. The micro-optical structure 400 can be manufactured by the following method. After providing a transparent substrate 402, the rectangular prism matrix 403 can be formed on the other surface of the transparent substrate 402 by printing or inkjet technology.

[0043] In an embodiment of the present invention, the display method further includes a step of converging light emitted by the light emitting element matrix 200 before the light is refracted by the micro-optical structure 400 so that the light emitted by the light emitting element matrix 200 has the same refraction angle. In this embodiment, a microlens matrix 401 formed between the light emitting element matrix 200 and the rectangular prism matrix 403 converges the light emitted by the light emitting element matrix 200. The microlenses 4011 in the microlens matrix 401 and the rectangular prisms 4031 in the rectangular prism matrix 403 are formed to correspond to each other. In an embodiment of the present invention, the microlens matrix 401 can be formed on the other surface of the transparent substrate 402 by printing or inkjet technology. In an embodiment of the present invention, the microlens 4011 can be a converging lens, for example a convex lens.

[0044] In step S103, the color of the light having the same refraction angle is converted into a predetermined color.

[0045] 1, 2, or 3, light emitted by rectangular prism matrix 403 is converted into light having a predetermined color by color conversion layer matrix 500. The color conversion layers in color conversion layer matrix 500 and rectangular prisms 4031 in rectangular prism matrix 403 are arranged to correspond to each other.

[0046] The color conversion layer matrix 500 includes a first color conversion layer 501, a second color conversion layer 502, and a third color conversion layer 503. The first color conversion layer 501 generates red light by exploding the light emitted by the light emitting element 201, the second color conversion layer 502 generates green light by exploding the light emitted by the light emitting element 201, and the third color conversion layer 503 generates blue light by exploding the light emitted by the light emitting element 201. In this embodiment, a color conversion layer that converts the color of light to a predetermined color can be formed on the light exit surface of the rectangular prism 4031.

[0047] In an embodiment of the present invention, the color of light having the same refraction angle is converted into a predetermined color. The display method of the present invention further includes a step of filtering the light converted into the predetermined color, thereby transmitting light having the predetermined refraction angle through refraction in the micro-optical structure 400 and blocking light other than the predetermined refraction angle. In an embodiment of the present invention, the color-converted light is filtered by the filter layer 600, which transmits light having the predetermined refraction angle and removes light having other refraction angles, thereby preventing the formation of an image with color differences. The filter layer 600 is a photonic crystal, which is a microstructure formed by periodically arranging media with different refractive indices, and allows light having the predetermined refraction angle to pass through the filter layer 600.

[0048] The display method of this embodiment includes the display device of the first embodiment, and can still achieve the effects of the first embodiment.

[0049] Example 3 In this embodiment, a display is provided, and the display device includes the display device of embodiment 1. The display device can obtain an image having a predetermined angle, and uses a light emitting element matrix that emits light of the same color as a light source, so that when light of the same color passes through the micro-optical structure, the same rotation angle is formed, and an image without color difference is formed.

[0050] As described above, the display device of the present invention uses the micro-optical structure to make the light emitted by the light emitting element have a predetermined refraction angle, thereby obtaining an image with a predetermined angle. In addition, the display device uses light of the same color as the light source, and converts the light of the same color that passes through the micro-optical structure into light of a predetermined color, thereby avoiding color differences caused by different light rotation angles when multiple lights of different wavelengths pass through the micro-optical structure.

[0051] The display of the present invention includes the display device, and can still achieve the effects of the present invention.

[0052] Although the preferred embodiments of the present invention have been described above in detail, the above embodiments are merely illustrative of the present invention, and the present invention is not limited to the configurations of the above embodiments. Those skilled in the art may make design changes and improvements without departing from the spirit of the present invention. Even if those skilled in the art make design changes and improvements without departing from the spirit of the present invention, they will of course be included within the scope of the claims of the present invention. [Explanation of symbols]

[0053] 100 Drive board 200 Light-emitting element matrix 201 Light-emitting element 300 transparent filler 400 Micro optical structure 401 Microlens Matrix 4011 Micro Lens 402 Transparent substrate 403 Rectangular Prism Matrix 4031 Right angle prism 500 color transformation layer matrix 501 First color conversion layer 502 Second color conversion layer 503 Third color conversion layer 600 filter layers 700 anti-interference layer 800 reflective layer

Claims

1. The light-emitting element includes a driving substrate, a light-emitting element matrix, a micro-optical structure, and a color conversion layer matrix; A drive circuit is mounted within the drive board, the light-emitting element matrix is ​​formed on a surface of the driving substrate, the light-emitting element matrix includes a plurality of light-emitting elements, the light-emitting elements are electrically connected to the driving circuit, and the plurality of light-emitting elements emit light of the same color; the micro-optical structure is formed above the light-emitting element matrix to make the light emitted by the light-emitting elements have the same refraction angle, and includes a rectangular prism matrix; the color conversion layer matrix is ​​formed above the rectangular prism matrix, the color conversion layers in the color conversion layer matrix correspond one-to-one to the rectangular prisms in the rectangular prism matrix, and the light emitting elements in the light emitting element matrix correspond one-to-one to the color conversion layers in the color conversion layer matrix; A display device, characterized in that the color conversion layer is formed in a prismatic shape on the light exit surface of the rectangular prism.

2. 2. The display device according to claim 1, wherein the micro-optical structure comprises a rectangular prism matrix, the rectangular prism matrix comprises a plurality of rectangular prisms, and the rectangular prisms and the light-emitting elements are arranged to correspond to each other.

3. 3. The display device of claim 2, wherein the color conversion layer matrix is ​​formed on top of the rectangular prism matrix, and the color conversion layers in the color conversion layer matrix correspond to the rectangular prisms in the rectangular prism matrix one by one.

4. 3. The display device of claim 2, wherein the micro-optical structure further comprises a transparent substrate, the transparent substrate being attached between the rectangular prism matrix and the light-emitting element matrix.

5. 5. The display device according to claim 4, wherein the cross section of the right-angled prism is a right-angled triangle, and one right-angled side of the right-angled triangle abuts against the transparent substrate.

6. 5. The display device of claim 4, wherein the micro-optical structure further comprises a microlens matrix, the microlens matrix being formed on one side of the transparent substrate closer to the light-emitting element matrix, the microlens matrix comprising a plurality of microlenses, and the microlenses and the rectangular prisms being formed to correspond to each other.

7. 7. The display device according to claim 6, wherein the microlens matrix is ​​a convex lens matrix or a concave lens matrix.

8. The display device of claim 1 or 3, wherein the color conversion layer matrix includes a first color conversion layer, a second color conversion layer, and a third color conversion layer, the first color conversion layer converts light emitted by the light-emitting element into red light, the second color conversion layer converts light emitted by the light-emitting element into green light, and the third color conversion layer converts light emitted by the light-emitting element into blue light.

9. 2. The display device of claim 1, wherein a filter layer is formed above the color conversion layer matrix, and the filter layer transmits light that is refracted at a predetermined refraction angle by the micro-optical structure and exits, and blocks light other than the light that is exited at the predetermined refraction angle.

10. The display device according to claim 1 , further comprising an anti-interference layer formed on the driving substrate so as to be located between two adjacent light emitting elements.

11. The display device according to claim 1 , further comprising a reflective layer formed on the driving substrate so as to be located between two adjacent light emitting elements.

12. A display comprising a display device according to any one of claims 1 to 11.

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